SI-CAP-10B Silicone Coolant Cap, 10 mm (3/8 in.) I.D. [Blue]
InfoVehicle Info Needed
BOOST PRODUCTSPART NUMBER: 353-SI-CAP-10B

SI-CAP-10B Silicone Coolant Cap, 10 mm (3/8 in.) I.D. [Blue]

$1468$16.32You Save$1.64
ShippingShips on 09/10/2026
Lowest PriceLowest Price Guarantee

Blue
    Silicone Coolant Cap
  • 10 mm (3/8 in.) I.D.
  • Blue

    Boost Products SI-CAP-10B Features:

    This BOOST Products Silicone end caps are reinforced with textile layers to be extreme pressure resistant and also to vacuum in your boost System. These caps are suitable for blanking of your intercooler or radioator pipes/tubes, intake systems, water lines or similar. Also ideal when an engine and/or auxillary parts have been removed and been standing for a long time, corrosion etc. is slowed down by closing open connections on the engine and parts. The silicone blanking caps can withstand up to 5 Bar and temperatures up to 220°, C. They are not to be used to get in contact with fuel or oil!In contrast to other suppliers, the Boost Products silicone caps are reinforced thanks to multiple fabric inserts, so they can also be loaded with pressure (air/water).After many tests we deliver best quality at the best price! The BOOST Products silicone Products have achieved and many times even exceeded the quality of silicone items compared to ones made by well known manufacturers in quality tests. This silicone is durable and flexible, stable and color-proof after many years. Lots of well known company's in the tuning and motorsport areas rely on silicone Products made by BOOST Products. Rely on our quality!BOOST Products silicone blanking caps have until 38mm 3 layers of fabric and 4.3mm wall thickness. They come with a small subtle BOOST Products logo which proofs the silicone hoses' quality.

    What you should consider with Silicone

    - The diameter refers to the inner diameter- when choosing the clamp take the wall thickness x2 for the right size- silicone Products are 1-3mm elastic- if you can't find the right size, choose the smaller one which is available

    Proper Sealing Silicone End Caps

    Boost Products Silicone Coolant Caps are engineered for exceptional durability, and reinforced with textile layers to handle high pressure and vacuum conditions in your boost system. Designed to withstand pressures up to 5 bar and temperatures up to 220°C (428°F), these silicone blanking caps offer reliable performance. They are perfect for sealing intercooler or radiator pipes/tubes, intake systems, water lines, and similar applications. They are also ideal for protecting open connections on engines or components that have been removed and left standing for extended periods, helping to reduce corrosion. Please note, that they are not suitable for contact with fuel or oil.

Part TypeHVAC Heater Hose Fitting
Product LineBoost Products Silicone Coolant Caps
BrandBOOST PRODUCTS
Package Height1.0
Package Width1.0
Package Length1.0
Weight1.0 PG
Part CategoryPerformance Parts
Part FitmentUniversal
Vendor Part NumberSI-CAP-10B
Package Qty1
Package TypeEA
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